Hi moslp
Just saw your post, hadn't been on the forum for ages. I am part of this group too and appeared in Alicante in 2017. I was one of the two people that BBVA immediately gave in to as two of us had irrefutable proof of payments made, in Spanish etc etc. I naively thought that was that for me but no, it turned out the SGR (the bank guarantee company) appealed and whe I enquired as to why it was taking so long, Eugenio Pedreno informed me that :
"Our barrister has informed us that the Supreme Court has a lot of cases in queue, and for that reason the normal timescale has increased a lot. According to her information the delay is around 2 years since the other party submitted the appeal. In consequence, we it is possible that we get the final decision of the Supreme Court in September or October 2020."
I have no idea how things proceeded for everyone else in the group action with regard to BBVA. Eugenio is very good at replying to emails, I would write to him and ask him for a summary of the situation with regard to your case.
Good luck!